Add fuzzer for H264 bitstream parser.

BUG=webrtc:6454
R=kthelgason@webrtc.org

Review-Url: https://codereview.webrtc.org/2430703002
Cr-Commit-Position: refs/heads/master@{#14936}
diff --git a/webrtc/test/fuzzers/BUILD.gn b/webrtc/test/fuzzers/BUILD.gn
index 764d719..c8ea399 100644
--- a/webrtc/test/fuzzers/BUILD.gn
+++ b/webrtc/test/fuzzers/BUILD.gn
@@ -68,6 +68,15 @@
   ]
 }
 
+webrtc_fuzzer_test("h264_bitstream_parser_fuzzer") {
+  sources = [
+    "h264_bitstream_parser_fuzzer.cc",
+  ]
+  deps = [
+    "../../modules/video_coding/",
+  ]
+}
+
 webrtc_fuzzer_test("flexfec_header_reader_fuzzer") {
   sources = [
     "flexfec_header_reader_fuzzer.cc",
diff --git a/webrtc/test/fuzzers/h264_bitstream_parser_fuzzer.cc b/webrtc/test/fuzzers/h264_bitstream_parser_fuzzer.cc
new file mode 100644
index 0000000..5661188
--- /dev/null
+++ b/webrtc/test/fuzzers/h264_bitstream_parser_fuzzer.cc
@@ -0,0 +1,21 @@
+/*
+ *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include <stdint.h>
+
+#include "webrtc/common_video/h264/h264_bitstream_parser.h"
+
+namespace webrtc {
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  H264BitstreamParser h264_bitstream_parser;
+  h264_bitstream_parser.ParseBitstream(data, size);
+  int qp;
+  h264_bitstream_parser.GetLastSliceQp(&qp);
+}
+}  // namespace webrtc